small amout of deprecated code refactored

Author: or-else

app/src/main/java/co/tinode/tindroid/VideoViewFragment.java

@@ -42,11 +42,11 @@
 
 import java.io.BufferedOutputStream;
 import java.io.File;
-import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.net.MalformedURLException;
 import java.net.URL;
+import java.nio.file.Files;
 
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
@@ -250,7 +250,7 @@ public void onResume() {
                         File temp = File.createTempFile("VID_" + System.currentTimeMillis(),
                                 ".video", activity.getCacheDir());
                         temp.deleteOnExit();
-                        OutputStream out = new BufferedOutputStream(new FileOutputStream(temp));
+                        OutputStream out = new BufferedOutputStream(Files.newOutputStream(temp.toPath()));
                         out.write(bits);
                         out.close();
                         mVideoView.setControllerAutoShow(false);
@@ -362,7 +362,7 @@ private Uri writeToTempFile(Context ctx, byte[] bits, String prefix, String suff
             File temp = File.createTempFile(prefix, suffix, ctx.getCacheDir());
             temp.deleteOnExit();
             fileUri = Uri.fromFile(temp);
-            OutputStream os = new FileOutputStream(temp);
+            OutputStream os = Files.newOutputStream(temp.toPath());
             os.write(bits);
             os.close();
         } catch (IOException ex) {

tinodesdk/src/main/java/co/tinode/tinodesdk/model/TheCard.java

@@ -2,7 +2,6 @@
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
-import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
 
 import org.jetbrains.annotations.NotNull;